测试明明是对的，可还是错的

Andyliu2023 @ 2024-11-15 21:26:09

#include <bits/stdc++.h>
using namespace std;
struct student{
    char s[21];
    int y,m,d;
}m[101];
bool operator<(student m1,student m2){
    if(m1.y!=m2.y) return m1.y<m2.y;
    if(m1.m!=m2.m) return m1.m<m2.m;
    if(m1.d!=m2.d) return m1.d<m2.d;
}
int main(){
    int n;
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>m[i].s>>m[i].y>>m[i].m>>m[i].d;
    stable_sort(m+1,m+n+1);
    for(int i=1;i<=n;i++)
        cout<<m[i].s<<endl;
    return 0;
}

by qazsedcrfvgyhnujijn @ 2024-11-15 21:32:27

“（如果有两个同学生日相同，输入靠后的同学先输出）”

by yaonainai @ 2024-11-15 21:34:58

@Andyliu2023

#include <bits/stdc++.h>
using namespace std;
struct student{
    char s[21];
    int y,m,d,num;
}m[101];
bool operator<(student m1,student m2){
    if(m1.y!=m2.y) return m1.y<m2.y;
    if(m1.m!=m2.m) return m1.m<m2.m;
    if(m1.d!=m2.d) return m1.d<m2.d;
    return m1.num>m2.num;
}
int main(){
    int n;
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>m[i].s>>m[i].y>>m[i].m>>m[i].d;
        m[i].num=i;
    }
    stable_sort(m+1,m+n+1);
    for(int i=1;i<=n;i++)
        cout<<m[i].s<<endl;
    return 0;
}

by yaonainai @ 2024-11-15 21:38:48

如果有两个同学生日相同，输入靠后的同学先输出 QAQ

by Andyliu2023 @ 2024-11-15 21:40:28

@dqh_0616@qazsedcrfvgyhnujijn@yaonainai 非常感谢！！！